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12032020103 = 43279814421
BaseRepresentation
bin10110011010010101…
…00000111010000111
31011001112100221200012
423031022200322013
5144120144120403
65305531540435
7604110324545
oct131512407207
934045327605
1012032020103
115114841874
1223b95ba71b
13119999612c
14821d94d95
154a6497ed8
hex2cd2a0e87

12032020103 has 4 divisors (see below), whose sum is σ = 12311834568. Its totient is φ = 11752205640.

The previous prime is 12032020073. The next prime is 12032020129. The reversal of 12032020103 is 30102023021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12032020103 - 210 = 12032019079 is a prime.

It is a super-2 number, since 2×120320201032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032020193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139907168 + ... + 139907253.

It is an arithmetic number, because the mean of its divisors is an integer number (3077958642).

Almost surely, 212032020103 is an apocalyptic number.

12032020103 is a deficient number, since it is larger than the sum of its proper divisors (279814465).

12032020103 is an equidigital number, since it uses as much as digits as its factorization.

12032020103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279814464.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12032020103 its reverse (30102023021), we get a palindrome (42134043124).

The spelling of 12032020103 in words is "twelve billion, thirty-two million, twenty thousand, one hundred three".

Divisors: 1 43 279814421 12032020103